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(No Model.) 'Ji E. .NOI-IAN. 2 Sheets-A-Sheet 1.

FIRE PROOF SAFE. No. 268.8418. Patented Dec. 12, 1882.

INVENTDR N. Pneus. Phuwmmogmpher. wnmingwn. D c.

1UMTED- STATES PATENT Ormea.

JOHN H. NOLAN, or BOSTON, MASS., ASSIGNOR, BY MESNn ASSIGNMENTS, To THE MAGNESO GALOITE lFinn-PROOF COMPANY, OF' SAME PLAGE.

FIRE-PROOF SAFE.

SPECIFICATION formngdpart of Letters Patent No. 268,818, dated December 12, 1882.

Application filed February 23, 1882. (No model.)

To all whom Lt may concern: Be it known that I, JOHN H. NOLAN, of Boston, in the county of Sutfolk and State of lvlassachusctts, a citizen of the United States, have invented a certain new and useful Improvement in Fire-Proof Safe-s, ot' which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming apart otl this specification, in extc plaining its nature, in which- Figure l is a perspective of a sal'e containing my invention with the door Open. Fig. 2 is a vertical section of a portion of the framework ofthe safe about the door, at the corner.

Fig. 3 isa horizontal section of the safe; and

Fig. 4 is an enlarged View of a part of the door and casing adjacent thereto, further illustrating the construction.

This invention relates especially to theconzo struction of the safe-door and the parts about it, whereby' the space which it is necessary to have'about the doorwhen closed to enable it to be swung out and in easily and to providefor the contraction and expansion of the metal, may be sealedor closed by the swelling action ofthe nre-proofV material under the action'of high temperature. I

In the drawings, A represents the body of the safe. B is thdoor. vIt is hinged in any 3o desirable way to the body of the safe, and it is made up ot' the metal casing C and the lireproof filling or material c. y

The plates o c2 of the door may be united in any desirable way, and the plates c have 55 extending inwardly a thin plate, c3, to which the thin inner plate, c4, is fastened by means of the angle-irons c5 and rivets c6 0T, which rivets, or either series thereof, are made of a metal which fuses at a comparatively low tem 4o perature. This construction allows the expansion of the fire-proof material under heat to force outwardly the plates c3 against the plates 08, thereby sealing ei'ectually thejoiut between the door and the body ofthe sate.

Fire-proofmaterial e9, like that described in one of my applications for Letters Patent of even date with this, or of a kindred nature, may be interposed between the plates c c3.

Various equivalents to attain the object of this invention maybe mentioned, among which 5o are' the following: Instead of using fusible rivets for uniting the plates c4 and c3, the said plate c, or the angle-iron, or both., may haveA slots, through which the rivet extends, whereby upon the expansion of the material the said plates c3 may be moved in relation to said plates c4,- or the plates o8 ofthe body ofthe safe,which surround the'door, may be made thin and so fastened to the body ot' the door by fusible plugs or in any other equivalent way as to yield or 6o give outwardlytoward the door on the expansion ot' the lire-proof material. As with the door, I interpose, to prevent metallic contact, the tire-proof material d between the plaie ca and the plate d. rlhis insulation of the inner 65 plates I deem ot'considerable importance, as y it is very desirable that the heat be not" transmitted to the interior of the' safe even in so minor a degree as that which would occur by conduction if the parts ot' the door and door- 7o frame were not separated from each other in this manner.

I am aware that soapstone has been used to prevent the heat from entering between the door and casing; also, that a strip ot' mica, 75 either alone or in connection with a strip of fusible metal, has been used for the same purpose in safes lined or stuffed with cement. I do not claim such, vas my invention differs materially therefrom. My devices used are 8o different, and are more particularly designed for safes lined and protected by a fire-proof Y material similar tol that describedl in my application for Letters Patent of the United States filed February 23, 1882. 8 5

Having thus fully described my invention, I claim and desire to secure' by Letters Patent of the United States- 1. In a nre-proof safe, thel combination ot the door-plates c cfi with the opposite and ad- 9o jacent frame-plates, c3, adapted to be closed upon each other by the expansible fire-proof filling c under heat, all substantially as and for the purposes described.

2. In a safe or other fire-proof receptacle lined or filled between the outer and inner plates with expansible tire-proof material, the plates c c3, resting upon and separated by and theyplates c3 c4 and. the angle-irons o5, adapted v to be `Vseured by fusible rivetsl c6 c", all substanin combination with the expansible re-proof tiallyr as and for the purposes set fort-h.

material c o9, all arranged substantially as and 5 for the purposes set forth.

3. In a safe or fire-proof receptacle, thedoor B, having the plates c e2, in combination with JOHN H. NOLAN. Witnesses:

F. F. RAYMOND, 2d, W. C. FOGG. 

